<?php // $Id: send.php,v 1.22.2.4 2008/05/08 03:41:11 jerome Exp $

require('../config.php');
require('lib.php');

require_login();

if (isguest()) {
	redirect($CFG->wwwroot);
}

if (empty($CFG->messaging)) {
	error("Messaging is disabled on this site");
}

if (has_capability('moodle/site:sendmessage', get_context_instance(CONTEXT_SYSTEM))) {


/// Don't use print_header, for more speed
	$stylesheetshtml = '';
	foreach ($CFG->stylesheets as $stylesheet) {
		$stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />';
	}

/// Select direction
	if ( get_string('thisdirection') == 'rtl' ) {
		$direction = ' dir="rtl"';
	} else {
		$direction = ' dir="ltr"';
	}

	@header('Content-Type: text/html; charset=utf-8');
	echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'."\n";
	echo "<html $direction xmlns=\"http://www.w3.org/1999/xhtml\">\n<head>\n";
	echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />';
	echo $stylesheetshtml;
	include($CFG->javascript);

/// Script parameters
	$userid   = required_param('id', PARAM_INT);
	$message  = optional_param('message', '', PARAM_CLEANHTML);
	$format   = optional_param('format', FORMAT_MOODLE, PARAM_INT);

/// Check the user we are talking to is valid
	if (! $user = get_record('user', 'id', $userid)) {
		error("User ID was incorrect");
	}

/// Check that the user is not blocking us!!
	if ($contact = get_record('message_contacts', 'userid', $user->id, 'contactid', $USER->id)) {
		if ($contact->blocked and !has_capability('moodle/site:readallmessages', get_context_instance(CONTEXT_SYSTEM))) {
			print_heading(get_string('userisblockingyou', 'message'));
			exit;
		}
	}
	$userpreferences = get_user_preferences(NULL, NULL, $user->id);

	if (!empty($userpreferences['message_blocknoncontacts'])) {  // User is blocking non-contacts
		if (empty($contact)) {   // We are not a contact!
			print_heading(get_string('userisblockingyounoncontact', 'message'));
			exit;
		}
	}


	if ($message!='' and confirm_sesskey()) {   /// Current user has just sent a message

	/// Save it to the database...
		$messageid = message_post_message($USER, $user, addslashes($message), $format, 'direct');

	/// Format the message as HTML
		$options = NULL;
		$options->para = false;
		$options->newlines = true;
		$message = format_text($message, $format, $options);

		$time = userdate(time(), get_string('strftimedatetimeshort'));
		$message = '<div class="message me"><span class="author">'.fullname($USER).'</span> '.
				   '<span class="time">['.$time.']</span>: '.
				   '<span class="content">'.$message.'</span></div>';
		$message = addslashes_js($message);  // So Javascript can write it

	/// Then write it to our own message screen immediately
		echo "\n<script type=\"text/javascript\">\n<!--\n";
		echo 'parent.messages.document.write(\''.$message."\\n');\n";
		echo 'parent.messages.scroll(1,5000000);';
		echo "\n-->\n</script>\n\n";

		add_to_log(SITEID, 'message', 'write', 'history.php?user1='.$user->id.'&amp;user2='.$USER->id.'#m'.$messageid, $user->id);
	}

	echo '<title> </title></head>';


	echo '<body class="message course-1" id="message-send">';
	echo '<center>';
	echo '<form id="editing" method="post" action="send.php">';
	echo '<div>';
	echo '<input type="hidden" name="id" value="'.$user->id.'" />';
	echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';

	$usehtmleditor = (can_use_html_editor() && get_user_preferences('message_usehtmleditor', 0));
	if ($usehtmleditor) {
		echo '<table><tr><td class="fixeditor" align="center">';
		print_textarea($usehtmleditor, 9, 200, 0, 0, 'message', '');
		echo '</td></tr></table>';
		echo '<input type="submit" value="'.get_string('sendmessage', 'message').'" />';
		use_html_editor('message', 'formatblock subscript superscript copy cut paste clean undo redo justifyleft justifycenter justifyright justifyfull lefttoright righttoleft insertorderedlist insertunorderedlist outdent indent inserthorizontalrule createanchor nolink inserttable');
		echo '<input type="hidden" name="format" value="'.FORMAT_HTML.'" />';
	} else {
		print_textarea(false, 5, 34, 0, 0, 'message', '');
		echo '<input type="hidden" name="format" value="'.FORMAT_MOODLE.'" />';
		echo '<br /><input type="submit" value="'.get_string('sendmessage', 'message').'" />';
	}
	echo '</div>';
	echo '</form>';
	if (!empty($CFG->messagewasjustemailed)) {
		notify(get_string('mailsent', 'message'), 'notifysuccess');
	}
	echo '<div class="noframesjslink"><a target="_parent" href="discussion.php?id='.$userid.'&amp;noframesjs=1">'.get_string('noframesjs', 'message').'</a></div>';
	echo '</center>';

	echo "\n<script type=\"text/javascript\">\n<!--\n";				  /// Focus on the textarea
	echo 'document.getElementById("edit-message").focus();'."\n";
	echo "\n-->\n</script>\n\n";

	echo '</body></html>';
}
?>
